Correct option is A
The ozone layer is the region of Earth’s
atmosphere responsible for absorbing sun UV rays. It is about 15 to 35 kilometres above the Earth’s surface. It acts as a barrier between the earth and the harmful ultraviolet rays. If the ozone layer were absent in the stratosphere, we would be more prone to skin cancer, cataracts, and weak immune systems.
• In the stratosphere, the ozone layer is crucial as it absorbs and protects us from the majority of the sun's harmful ultraviolet (UV) radiation. This layer is beneficial and vital for life on Earth.
• However, at ground level (troposphere), ozone is considered a harmful pollutant. It can cause
respiratory problems and other health issues in humans and animals. It can also damage vegetation
and ecosystems.
• Ozone is a pollutant at ground level for both animals and human beings, causing adverse health effects and environmental damage.
